CN105103403B

CN105103403B - The system and method for power capability for extended wireless charger

Info

Publication number: CN105103403B
Application number: CN201480010093.4A
Authority: CN
Inventors: 弗朗切斯科·卡罗勃兰特
Original assignee: Qualcomm Inc
Current assignee: Qualcomm Inc
Priority date: 2013-03-12
Filing date: 2014-02-25
Publication date: 2019-04-05
Anticipated expiration: 2034-02-25
Also published as: JP6423414B2; JP2016516384A; WO2014163874A3; EP2973939B1; US20140266018A1; CN105103403A; WO2014163874A2; EP2973939A2

Abstract

The present invention is provided to the systems of wireless power transmitting, method and apparatus.In an aspect, a kind of equipment wirelessly transfers energy at least one receiving antenna of at least one receiver.The equipment includes first antenna, is configured to generate the first wireless field when at least one described receiver is in the energy transmission area of the first transmitting antenna.The equipment further comprises the second antenna, is configured to generate the second wireless field when at least one described receiver is in the energy transmission area of the second transmitting antenna.The equipment further comprises controller, is configured to one or both energy transmission area whether being in first and second wireless field based at least one described receiver and activates at least one of the first antenna or second antenna.

Description

The system and method for power capability for extended wireless charger

Technical field

The present invention relates generally to wireless powers.More precisely, the present invention is for the hair in wireless power transmission system Emitter and receiver.

Background technique

The electronic device of more and more number and type is powered via rechargeable battery.These devices include mobile electricity Words, portable music player, laptop computer, tablet computer, computer peripheral devices, communication device are (for example, bluetooth Device), digital camera, hearing aid etc..Although battery technology has been improved, battery powered electronic device is increasingly needed It wants and consumes a greater amount of electric power, therefore usually need to recharge.Rechargeable device is usually via wired connection via object The cable or other similar connectors for being connected to reason electric supply charge.Cable and similar connector there may come a time when inconvenience Or it is cumbersome, and have the shortcomings that other.It can be ready to use in as rechargeable charge electronic devices or provide electricity to electronic device The wireless charging system that electric power is transmitted in the free space of power can overcome some shortcomings of wired charging solution.As a result, to Electronic device effectively and safely transmits the wireless power transmission system of electric power and method is desirable.

Summary of the invention

The various embodiments of system, method and apparatus within the scope of the appended claims respectively have several sides Face, single aspect therein are not responsible for wanted attribute described herein individually.In the model for not limiting the appended claims In the case where enclosing, some powerful and influential features are described herein.

The details of one or more embodiments of subject matter described in this specification is illustrated in the accompanying drawings and the description below. Other feature, aspect and advantage will become apparent from the description, schema and claims.It should be noted that the following figure Relative size may be not drawn on scale.

One aspect of the present invention provides a kind of for wirelessly transferring energy at least one receiver extremely The equipment of a few receiving antenna.The equipment includes the first transmitting antenna, is configured to when at least one described receiver The first wireless field is generated when energy transmission area in first transmitting antenna.The equipment further comprises the second transmitting day Line, it is spaced apart with first transmitting antenna, second transmitting antenna be configured to when it is described at least one connect It receives when device is in the energy transmission area of second transmitting antenna and generates the second wireless field.The equipment further comprises control Device is operatively coupled to first transmitting antenna and second transmitting antenna, and is configured to based on described at least one One or both energy transmission area that whether a receiver is in first wireless field and second wireless field and activate At least one of first transmitting antenna or second transmitting antenna.The controller can further be configured to work as institute The following terms is controlled when stating both the first transmitting antenna and second transmitting antenna through activating: first transmitting antenna and institute State whether the second transmitting antenna independently wirelessly transfers energy to identical receiver via the first and second wireless fields； Whether first transmitting antenna and second transmitting antenna jointly wirelessly will via the first and second wireless fields Energy transmission is to the identical receiver；Or whether first transmitting antenna and second transmitting antenna wirelessly pass through Different receivers are transferred energy to by the first and second wireless fields.

Another aspect of the present invention provides one kind and wirelessly transfers energy at least the one of at least one receiver The method of a receiving antenna.The method includes being in first hair at least one described receiver by the first transmitting antenna The first wireless field is generated when penetrating the energy transmission area of antenna.The method further includes by spatially emitting day with described first The second transmitting antenna that line separates is when at least one described receiver is in the energy transmission area of second transmitting antenna Generate the second wireless field.The method further includes whether being in first wireless field based at least one described receiver With one or both energy transmission area in second wireless field and activate first transmitting antenna or it is described second transmitting At least one of antenna.The method further includes passing through when both first transmitting antenna and second transmitting antenna The following terms is controlled when activation: first transmitting antenna and second transmitting antenna whether independently wirelessly via First and second wireless fields transfer energy to identical receiver；Whether first transmitting antenna and second transmitting antenna Jointly the identical receiver wirelessly is transferred energy to via the first and second wireless fields；Or first transmitting Whether antenna and second transmitting antenna wirelessly transfer energy to different receptions via the first and second wireless fields Device.

Another aspect of the present invention provides a kind of for wirelessly transferring energy at least one receiver extremely The equipment of a few receiving antenna.The equipment includes for when at least one described receiver is in described described for generating The device of the first wireless field is generated when the energy transmission area of the device of the first wireless field.The equipment further comprises for working as institute It states when at least one receiver is in the energy transmission area for the device for generating second wireless field and generates the second nothing The device of the field of line.The equipment further comprises for whether being in first wireless field based at least one described receiver With one or both energy transmission area in second wireless field and activate described for generating the dress of first wireless field It sets or described for generating the device of at least one of device of second wireless field.The equipment further comprises being used for When both the device for generating first wireless field and the device for generating second wireless field are through swashing The device of the following terms is controlled when living: the device for generating first wireless field and described for generating described second Whether the device of wireless field independently wirelessly transfers energy to identical receiver via the first and second wireless fields；Institute State the device for generating first wireless field and it is described for generate second wireless field device whether jointly with Wireless mode transfers energy to the identical receiver via the first and second wireless fields；Or it is described for generating described first Whether the device of wireless field and the device for generating second wireless field are wirelessly via the first and second nothings The field of line transfers energy to different receivers.

Another aspect of the present invention provides a kind of non-transitory computer-readable media including code, and the code is being held An equipment is caused to be in the energy transmission of first transmitting antenna at least one receiver using the first transmitting antenna when row The first wireless field is generated when area.The media further comprise code, and the code causes an equipment use space when being executed Upper the second transmitting antenna separated with first transmitting antenna is in second transmitting at least one described receiver The second wireless field is generated when the energy transmission area of antenna.The media further comprise code, and the code causes when being executed Whether one equipment is in one or two in first wireless field and second wireless field based at least one described receiver The energy transmission area of person and activate at least one of first transmitting antenna or second transmitting antenna.The media into One step includes code, and the code causes an equipment when first transmitting antenna and second transmitting antenna two when being executed The following terms is controlled when person is through activating: independently wirelessly whether first transmitting antenna and second transmitting antenna Identical receiver is transferred energy to via the first and second wireless fields；First transmitting antenna and second transmitting antenna Whether the identical receiver wirelessly jointly is transferred energy to via the first and second wireless fields；Or described first Whether transmitting antenna and second transmitting antenna wirelessly transfer energy to difference via the first and second wireless fields Receiver.

Detailed description of the invention

Fig. 1 is the functional block diagram of exemplary radio power delivery system according to an exemplary embodiment of the invention.

Fig. 2 is showing in the wireless power transmission system that can be used for Fig. 1 of various exemplary embodiments according to the present invention The functional block diagram of plasticity component.

Fig. 3 is the transmit circuit of Fig. 2 comprising transmitting or receiving antenna according to an exemplary embodiment of the invention or connects Receive the schematic diagram of a part of circuit.

Fig. 4 is the transmitter in the wireless power transmission system that can be used for Fig. 1 according to an exemplary embodiment of the invention Functional block diagram.

Fig. 5 is the receiver in the wireless power transmission system that can be used for Fig. 1 according to an exemplary embodiment of the invention Functional block diagram.

Fig. 6 is the schematic diagram of a part of the transmit circuit in the transmit circuit for can be used for Fig. 4.

Fig. 7 is the layout of the first transmitting coil and the second transmitting coil in the wireless power transmission system of explanatory diagram 1 Figure.

Fig. 8 A is two transmittings for illustrating wirelessly to transfer energy to double loop receiving coil for charging purposes The figure of the top view of coil.

Fig. 8 B is two transmittings for illustrating wirelessly to transfer energy to double loop receiving coil for charging purposes The figure of the side view of coil.

Fig. 9 is the first transmitting coil, the second transmitting coil and third transmitting in the wireless power transmission system of explanatory diagram 1 The top view of coil and the figure of side view.

Figure 10 is the first transmitting coil, the second transmitting coil, third transmitting in the wireless power transmission system of explanatory diagram 1 The figure of the top view and side view of coil and the 4th transmitting coil.

Figure 11 is the flow chart for wirelessly transmitting the exemplary method 800 of energy.

Figure 12 is the functional block diagram according to the transmitter of exemplary embodiment.

The various features illustrated in schema may be not drawn on scale.Therefore, for the sake of clarity arbitrarily it can expand or contract The size of small various features.In addition, some schemas in schema may not describe given system, all groups of method or apparatus Part.Finally, indicating same characteristic features using same reference numerals possibly through specification and schema.

Specific embodiment

Below in conjunction with the set description as to exemplary embodiment of the invention of detailed description that attached drawing illustrates, and not Wish to indicate the only embodiment that wherein the present invention may be practiced.Used term " demonstration " expression is described through this " to serve as Examplea, instances, or illustrations ", and should be not necessarily construed as preferably or more advantageous than other exemplary embodiments.It is described detailed description for The purpose of thorough understanding of the exemplary embodiments of the invention is provided and includes specific detail.In some cases, with block diagram Form shows some devices.

Wirelessly transmitting electric power can be referred to any form associated with electric field, magnetic field, electromagnetic field or other persons Energy be transmitted to receiver from transmitter, without the use of physics electric conductor (for example, electric power can be transmitted via free space). Electric power output to wireless field (for example, magnetic field or electromagnetic field) can be received by " receiving antenna ", captured or be coupled to realize electric power Transmitting.It will be understood that running through this specification, two components " coupling " can refer to its interaction carried out via direct or indirect mode, and It can further refer to physically connection (for example, wired) coupling or physically disconnect (for example, wireless) coupling.

Fig. 1 is the functional block diagram of exemplary radio power delivery system 100 according to an exemplary embodiment of the invention.It is defeated Entering electric power 102 can be from power supply offer (not shown) to transmitter 104 for generating for providing the field 105 of energy transmission.It connects Receiving device 108 can be coupled to field 105 and generates output power 110 for the device for being coupled to output power 110 storage (not shown) Or consumption.Both transmitter 104 and receiver 108 separation distance 112.In an exemplary embodiment, it transmitter 104 and connects Receiving device 108 is configured according to mutual resonant relationship.When the resonance frequency of receiver 108 and the resonance frequency of transmitter 104 are real Transmitting loss reduction when identical or very close in matter, between transmitter 104 and receiver 108.As a result, can with can need it is big Coil is extremely transmitted close to the pure inductance solution of (for example, mm) compared to offer wireless power over a large distance.Resonance electricity Therefore sense coupling technique allows improved efficiency and various apart from electric power that is upper and carrying out using the configuration of a variety of inductance coils Transmitting.

When receiver 108 is located in the energy field 105 generated by transmitter 104, receiver 108 can receive electric power.? 105 correspond to the area that the energy wherein exported by transmitter 104 can be captured by receiver 105.In some cases, field 105 can Corresponding to " near field " of transmitter 104, as described further below.Transmitter 104 may include for exporting energy transmitting Transmitting antenna 114 (for example, transmitting coil).Receiver 108 is further included for receiving or capturing the energy from energy transmitting The receiving antenna 118 (for example, receiving coil) of amount.Near field can correspond to wherein exist by the bottom line in transmitting antenna 114 The area for the strong reactivity field that electric current and charge of the eradiation electric power far from transmitting antenna 114 generate.In some cases, near field can Corresponding to the area in about wavelength (or its score) of transmitting antenna 114.118 basis of transmitting antenna 114 and receiving antenna It is sized using and to device associated there.As described above, effective energy transmitting can be by by transmitting antenna 114 Most of energy coupling in field 105 is sent out to receiving antenna 118 rather than by most of energy transmissions to far field in electromagnetic wave It is raw.When positioning on the scene 105, " coupled mode " can be formed between transmitting antenna 114 and receiving antenna 118.Transmitting antenna 114 and receiving antenna 118 around occur this coupling region be herein referred to as coupling mode.

Fig. 2 is in the wireless power transmission system 100 that can be used for Fig. 1 of various exemplary embodiments according to the present invention The functional block diagram of exemplary component.Transmitter 204 may include transmit circuit 206, the transmit circuit may include oscillator 222, Drive circuit 224 and filtering and match circuit 226.Oscillator 222 can be configured to generate expected frequency (such as 468.75kHz, 6.78MHz or 13.56MHz) under signal, the expected frequency may be in response to frequency control signal 223 to adjust Section.Oscillator signal can be provided and be configured to driving transmitting antenna 214 under the (for example) resonance frequency of transmitting antenna 214 Drive circuit 224.Drive circuit 224 can be to be configured to receive square wave from oscillator 222 and export opening for sine wave Close amplifier.For example, drive circuit 224 can be E class A amplifier A.It also may include filtering with match circuit 226 to filter out Harmonic wave or other unnecessary frequencies, and transmitter 204 is impedance-matched to transmitting antenna 214.As driving transmitting antenna 214 as a result, transmitter 204 can in the case where being enough to the level of charge electronic devices or power supply wirelessly output power.Make For an example, provided electric power can for for example, about 300 milliwatts to 5 watts to supply the different device with different electricity needs Electricity or charging.Higher or lower power level can also be provided.

Receiver 208 may include receiving circuit 210, and the reception circuit may include match circuit 232 and rectifier and open Powered-down road 234 is to generate the DC electric power exported from AC electric power input, to be battery 236 as shown in Figure 2 charging, Huo Zhewei It is coupled to the device power supply (not shown) of receiver 108.It may include match circuit 232 so that the impedance matching of circuit 210 will be received To receiving antenna 218.Receiver 208 and transmitter 204 can be in addition in independent communication channel 219 (for example, bluetooth, purple honeybee, honeycombs Deng) on communicate.The characteristic of receiver 208 and transmitter 204 or usable wireless field 206 is communicated via in-band signaling.

As described more fully below, receiver 208 (its can initially have alternative deactivated associated load (for example, Battery 236)) it can be configured to determine and be emitted by transmitter 204 and whether be suitable for battery by the received amount of power of receiver 208 236 chargings.In addition, receiver 208 can be configured to enable load (for example, battery 236) at once after determining that amount of power is appropriate. In some embodiments, receiver 208 can be configured directly to utilize from wireless power and transmit the received electric power in field, without being electric It charges in pond 236.For example, for example, near-field communication (NFC) or rfid device (communication devices such as RFID can be configured with from Wireless power transmits field and receives electric power, and by transmitted with wireless power communicated and field interact and/or using received electric power and Transmitter 204 or the communication of other devices.

Fig. 3 is the transmit circuit 206 of Fig. 2 according to an exemplary embodiment of the invention comprising transmitting or receiving antenna 352 Or receive the schematic diagram of a part of circuit 210.As illustrated in Figure 3, to contain the demonstration of embodiment as described below Transmitting or reception circuit 350 in embodiment may include antenna 352.Antenna 352 is also referred to as or is configured as " loop " antenna 352.Antenna 352 can also be herein referred to as or be configured as " magnetism " antenna or induction coil.Term " antenna " is generally Refer to the component that wirelessly can export or receive the energy for being coupled to another " antenna ".Antenna is also referred to as being configured Wirelessly to export or receive the coil of the type of electric power.As used herein, antenna 352 is to be configured to use wireless parties The example of " the electric power transmitting assembly " of the type of formula output and/or reception electric power.Antenna 352 also can be configured comprising air-core Or physics core, such as ferrite core (not shown).Air-core loop antenna 352 allows for other components to be placed in core region. In addition, air-core loop can be easier to allow for receiving antenna 218 (Fig. 2) to be placed in the plane of transmitting antenna 214 (Fig. 2), In the plane, the coupling mode of transmitting antenna 214 (Fig. 2) may be more powerful.

As stated, it matches between transmitter 104 and receiver 108 or almost during matched resonance, can send out High efficiency energy transmitting between emitter 104 and receiver 108.However, even if when humorous between transmitter 104 and receiver 108 When vibration mismatches, energy can also be transmitted, but efficiency may be subjected to influence.Energy transmission be by by energy from transmitting The receiving antenna 218 for residing therein and establishing in this 105 neighborhood is coupled in the field 105 of 214 coil of antenna, rather than will Amount travels in free space from transmitting antenna 214.

The resonance frequency of loop or magnetic antenna is based on inductance and capacitor.Inductance can be only the inductance of the generation of antenna 352, And the inductance of antenna can be added capacitance to generate the resonance structure under wanted resonance frequency.As non-limiting examples, electric Container 352 and capacitor 354 can be added to transmitting or receive circuit 350 to form the humorous of selection signal 356 at the resonant frequency fx Shake circuit.Therefore, for larger-diameter antenna, the size of capacitor needed for maintaining resonance can be with the diameter or inductance of loop Increase and reduce.In addition, the diameter with antenna increases, the high efficiency energy delivery areas near field can increase.Use other groups Other resonance circuits that part is formed are also possible.As another non-limiting examples, Capacitor parallel can be placed on antenna Between 350 two terminals.For transmitting antenna, the signal 358 that frequency is substantially corresponding to the resonance frequency of antenna 352 can be Input to antenna 352.

In one embodiment, transmitter 104 can be configured to output with corresponding with the resonance frequency of transmitting antenna 114 Frequency time-varying magnetic field.When in receiver on the scene 105, time-varying magnetic field can cause the electric current in receiving antenna 118.As above It is described, if receiving antenna 118 is configured to the resonating at frequencies of transmitting antenna 118, it can effectively transmit energy. The AC signal rectification incuded in receiving antenna 118, which can be generated, as described above may be provided as load charging or confession The DC signal of electricity.

Fig. 4 is the transmitter 404 in the wireless power transmission system for can be used for according to an exemplary embodiment of the invention Fig. 1 Functional block diagram.Transmitter 404 may include transmit circuit 406 and transmitting antenna 414.Transmitting antenna 414 can be as shown in Figure 3 Antenna 352.Transmit circuit 406 can be by providing the vibration for leading to generate the energy (for example, magnetic flux) around transmitting antenna 414 It swings signal and provides RF electric power to transmitting antenna 414.Transmitter 404 can operate under any suitable frequency.By means of reality Example, transmitter 404 can operate under 6.78MHz ISM band.

Transmit circuit 406 may include: fixed impedance matching circuit 409, be used for by the impedance of transmit circuit 406 (for example, 50 ohm) it is matched to transmitting antenna 414；With low-pass filter (LPF) 408, being configured to for harmonic emissions being reduced to is prevented It is coupled to the level of the self-interference of the device of receiver 108 (Fig. 1).Other exemplary embodiments may include that different filters are opened up It flutters, including but not limited to making the notch filter of specific frequency attenuation while passing through other frequencies, and may include can base In the Adaptive impedance matching that can measure transmitting measurement and change, the measurement is output power or the drive for example to antenna 414 The DC electric current that dynamic device circuit 424 is drawn.Transmit circuit 406 is further included to be configured to drive and such as be determined by oscillator 423 RF signal drive circuit 424.Transmit circuit 406 can be made of discrete device or circuit, or can be combined by integrated form Part composition.The exemplary RF electric power exported from transmitting antenna 414 may be about 2.5 watts.

Transmit circuit 406 can further include controller 415, be used for specific receiver transmitter phase (or work Circulation) during selective enabling oscillator 423, for adjusting the frequency or phase of oscillator 423, and for adjusting output power Level via the receiver of its attachment for implementing communication protocol with neighboring devices to interact.It should be noted that controller 415 exists It is also known as processor 415 herein.The adjusting of oscillator phase and interlock circuit in transmission path allows to reduce band Outer transmitting, especially when being transformed into another frequency from a frequency.

Transmit circuit 406 can further include load sense 416, be used to detect caused by transmitting antenna 414 The presence or absence of active receiver near near field.By means of example, the monitoring of load sense 416 flow to drive circuit 424 electric current, the electric current can be by the shadows of the presence or absence of middle active receiver near field caused by transmitting antenna 414 It rings, as described further below.Controller 415 monitors the detection of the load variation on drive circuit 424, is for determination No enabling oscillator 423 communicates so as to emitted energy and with active receiver.As described more fully below, in drive circuit The electric current measured at 424 can be used for determining whether that invalidation means are located in the wireless power transmission region of transmitter 404.

Transmitting antenna 414 can be implemented with litz wire, or be embodied as be chosen so that resistance loss keep low thickness, The antenna strip band of width and metal types.In one embodiment, transmitting antenna 414 be generally configured for it is larger Structure (for example, desk, cushion, lamp or other less portable configurations) is associated.Therefore, transmitting antenna 414 can be usually not required to Want " circle " so as to feasible size.The exemplary embodiment of transmitting antenna 414 can be " electrically lesser " (that is, wave Long score), and after tuning to define resonance frequency and under relatively low usable frequency resonance by using capacitor.

Transmitter 404 can collect and track about can acceptor device associated with transmitter 404 whereabouts and state Information.Therefore, transmit circuit 406 may include Existing detector 480, closing detector 460 or combinations thereof, be connected to control Device 415 (also referred herein as processor).Controller 415 may be in response to from Existing detector 480 and close detector 460 The amount of power delivered by drive circuit 424 is adjusted there are signal.Transmitter 404 can receive electric power, institute via several power supplys Power supply is stated for example to the AC-DC converter (not shown) of routine AC electric power present in conversion building, to by conventional DC Power supply is converted into being suitable for the DC-DC converter (not shown) of the voltage of transmitter 404, or (not directly from conventional DC power supply Diagram).

As non-limiting examples, Existing detector 480 can be for sensing the overlay area for being inserted into transmitter 404 In device to be charged the motion detector being initially present.After a test, transmitter 404 can be connected, and device receives To RF electric power can be used in a predefined manner by the switch bifurcation triggering on Rx device, this can cause the driving of transmitter 404 again The change of point impedance.

As another non-limiting examples, Existing detector 480 can be that can for example pass through infrared detection, motion detection Or other suitable modes detect the detector of people.In some exemplary embodiments, limitation transmitting antenna 414 may be present can be The regulations of the amount of power emitted under specific frequency.In some cases, these regulations intention protects people from electromagnetic radiation.So And, it is understood that there may be transmitting antenna 414 be placed in do not occupied by the mankind or the region that is infrequently occupied by the mankind in environment, example Such as garage, factory floor, shop.If nobody in these environment, may be allowed transmitting antenna 414 Electric power output is increased above normal electricity limitation regulations.In other words, controller 415 may be in response to the presence of people and will emit The electric power output of antenna 414, which is adjusted, arrives regulations level or lower, and when people is in the regulations distance of the electromagnetic field away from transmitting antenna 414 The electric power output of transmitting antenna 414 is adjusted to the level higher than regulations level when outer.

As non-limiting examples, closing detector 460 (is also known as enclosed compartment detector or closing herein Spatial detector) can be such as be used to determine when shell be in close or open the sense switch of state device.Work as hair When emitter is in the shell in closed state, the power level of transmitter can increase.

In an exemplary embodiment, method of the transmitter 404 so as to not keeping it turning on ad infinitum can be used.In this situation Under, transmitter 404 can be programmed to cut off after the time quantum that user determines.This feature prevents transmitter 404 from (especially driving Dynamic device circuit 424) long-play after wireless device in its periphery is fully charged.This event is attributable to the circuit not It can detect the fully charged signal of the device sent from repeater or receiving antenna 218.Transmitter 404 is in another dress in order to prevent Placement location is automatically closed in the case where its periphery, can be only that after the set fixed cycle for detecting without motion in its periphery Activate 404 automatic shut-off features of transmitter.User may can determine inactivetime interval, and change the time as needed Interval.As non-limiting examples, the time interval can be longer than specific type under the hypothesis that device initially discharges completely The wireless device fully charged required time.

Fig. 5 is the receiver 508 in the wireless power transmission system for can be used for according to an exemplary embodiment of the invention Fig. 1 Functional block diagram.Receiver 508 includes the reception circuit 510 that may include receiving antenna 518.Receiver 508 is further coupled to Device 550 is for providing it received electric power.It should be noted that receiver 508 is illustrated as outside device 550, but can collect At into device 550.Energy can wirelessly travel to receiving antenna 518, and then via its remaining part for receiving circuit 510 Divide and is coupled to device 550.By means of example, charging unit may include such as mobile phone, portable music player, on knee Computer, tablet computer, computer peripheral devices, communication device (for example, blue-tooth device), digital camera, hearing aid are (other Medical device) and the devices such as its similar device.

Receiving antenna 518 can be tuned with transmitting antenna 414 (Fig. 4) under identical frequency resonance or in assigned frequency model Enclose interior resonance.Receiving antenna 518 can similarly be set size with transmitting antenna 414, or can be based on the ruler of associated devices 550 It is very little and be differently sized.By means of example, device 550 can be for the straight of the diameter or length for being less than transmitting antenna 414 The portable electronic device of diameter or length dimension.In this example, receiving antenna 518 can be implemented multiturn coil to reduce The capacitance of tuning capacitor (not shown) and the impedance for increasing receiving coil.By means of example, receiving antenna 518 be can be placed in Around the general circumferential of device 550 so as to maximize antenna diameter and reduce receiving antenna 518 ring circle (that is, winding) number Mesh and interwinding capacity.

Receiving circuit 510 can provide the impedance matching to receiving antenna 518.Receiving circuit 510 includes power conversion circuit 506, the RF energy source for will receive is converted into charging power so that device 550 uses.Power conversion circuit 506 includes RF It to DC converter 520 and also may include DC to DC converter 522.RF to DC converter 520 will be received at receiving antenna 518 RF energy signal rectification is at by V_rectThe non-alternating electric power of the output voltage of expression.DC to DC converter 522 (or other electricity Draught control mechanism) by rectified RF energy signal be converted into can gesture (for example, voltage), it is described can gesture with have by V_outAnd I_outTable The device 550 of the output voltage and output electric current that show is compatible.It is expected that various RF to DC converters, comprising part of rectifier and complete whole Flow device, adjuster, bridge, voltage multiplie and linearly and dc-dc converter.

Receiving circuit 510 can further include switching circuit 512, for receiving antenna 518 to be connected to electrical power conversion electricity Road 506 or for disconnecting power conversion circuit 506.Receiving antenna 518 is disconnected from power conversion circuit 506 Not only make the charging pause of device 550, but also changes " load " of transmitter 404 (Fig. 2) institute " experience ".

As disclosed, transmitter 404 includes load sense 416, can detect to provide and arrives transmitter driver The fluctuation of the bias current of circuit 424.Therefore, transmitter 404 has for determining when receiver is present in the close of transmitter Mechanism in.

When multiple receivers 508 are present in the near field of transmitter, it may be necessary to by the load of one or more receivers Time multiplexing is carried out so that other receivers can be more efficiently coupled to transmitter with unloading.Receiver 508 may be used also It is concealed to eliminate other couplings of receiver nearby or to reduce the load on transmitter nearby.This " unloading " of receiver Referred to herein as " hide ".In addition, being controlled by receiver 508 and between the unloading and load that are detected by transmitter 404 This switching can provide the communication mechanism from receiver 508 to transmitter 404, more abundant explanation as follows.Further, it enables can incite somebody to action Message can be associated with the switching from the agreement that receiver 508 is sent to transmitter 404.By means of example, switch speed can It is about 100 μ sec.

In an exemplary embodiment, the communication between transmitter 404 and receiver 508 refers to device sensing and charge control Mechanism, and unconventional two-way communication (that is, using the in-band signaling of coupled field).In other words, transmitter 404 can be used to institute Whether the ON/OFF keying for emitting signal is available near field to adjust energy.Receiver can solve these changes of energy It is translated into the message from transmitter 404.From the point of view of receiver-side, the tuned and demodulated of receiving antenna 518 is can be used in receiver 508 The humorous amount to adjust the electric power received from the field.In some cases, the tuned and demodulated is humorous can be via switching circuit 512 To realize.Transmitter 404 can detect this difference for carrying out the used electric power of self-fields and these changes be construed to from reception The message of device 508.It should be noted that can sharp transmitting electric power and load behavior other forms modulation.

Receiving circuit 510 can further include signaling detector and beacon circuit to identify received energy fluctuation 514, the energy fluctuation can correspond to the signalling information from transmitter to receiver.In addition, signaling and beacon circuit 514 may be used also To detect the transmitting of reduced RF signal energy (that is, beacon signal), and the RF signal energy of reduction is rectified into and is used to call out Wake up receive circuit 510 in without power supply or power drain circuit nominal power so as to configure receive circuit 510 with for into Row wireless charging.

The process that circuit 510 is further included for coordinating receiver 508 described herein is received (to be retouched comprising this paper The control for the switching circuit 512 stated) processor 516.The concealment of receiver 508 can also occur after other events occur, institute Stating event includes to detect to provide charging power to the outside wired charging source (for example, wall type/USB electric power) of device 550.Except control Except the concealment of receiver processed, processor 516 can also monitor beacon circuit 514 to determine beacon state and extract from transmitter 404 message sent.Processor 516 can also adjust DC to DC converter 522 to realize improved performance.

Fig. 6 is the schematic diagram of a part of the transmit circuit 600 in the transmit circuit 406 for can be used for Fig. 4.Transmit circuit 600 may include such as drive circuit 624 as described in Figure 4 above.As described above, drive circuit 624 can be It can be configured to receive square wave and export the switching amplifier of the sine wave to be supplied to transmit circuit 650.In some cases Under, drive circuit 624 can be referred to amplifier circuit.Drive circuit 624 is shown as E class A amplifier A；However, can be according to this The embodiment of invention uses any suitable drive circuit 624.Drive circuit 624 can be by from vibration as shown in Figure 4 The input signal 602 of device 423 is swung to drive.Drive circuit 624 can also have be configured to control can be via transmit circuit 650 The driving voltage V of the maximum power of delivering_D.In order to eliminate or reduce harmonic wave, transmit circuit 600 may include filter circuit 626. Filter circuit 626 can be three poles (capacitor 634, inductor 632 and capacitor 636) low-pass filter circuit 626.

The signal that filter circuit 626 exports can provide transmit circuit 650 (including antenna 614).Transmit circuit 650 can Comprising with capacitor 620 and inductance (for example, its inductance for being attributable to antenna or capacitor or due to additional capacitor component) Series resonant circuit, can be in resonating at frequencies through filtered signal provided by drive circuit 624.Transmit circuit 650 Load can be indicated by variable resistance 622.The load, which can be, to be located to receive the wireless of electric power from transmit circuit 650 The function of power receiver 508.

Usually in wireless charging system, it may be difficult to increase the emission lines such as transmitting antenna 114,214 and/or 414 The size of circle is to adapt to larger device, because the overlay area of scalable radio field to become problem safely thus.Citing comes Say, if transmitting coil is greater than receiving coil (for example, receiving antenna 118,218 and/or 518), exists and be attributed to people's Body is Chong Die with the wireless field generated as transmitting coil and the potential security risks caused by the mankind.Furthermore, it is possible to due to class It is difficult to increase the electric power for being supplied to transmitting coil like security concern.

The security concern being indicated above can be by increasing the number of transmitting coil (for example, by increasing transmitting day The number of line 114,214 and/or 414) and minimize.By increasing the number of transmitting coil, the electric power range ability of transmitter Significant relatively large load (for example, 30W or bigger) can be increased to from 5-15W, while still conforming to regulatory requirement and maintaining to lower electricity The functional backward compatibility of power.In one embodiment, transmitters such as transmitter 404 comprising respectively generating the two of wireless field A or more than two transmitting coils.It is more fully described below with respect to Fig. 7-12 comprising two or more transmitting coils Transmitter.

Fig. 7 is the first emission lines illustrated in the wireless power transmission system such as the wireless power transmission system 100 of Fig. 1 Enclose the figure of the layout of 708A and the second transmitting coil 708B.As illustrated in figure 7, the transmitting antenna 414 of Fig. 4 may include the first hair Ray circle 708A and the second transmitting coil 708B.In addition, the first receiving coil 716A and the second receiving coil 716B can be positioned at In the close proximity of first transmitting coil 708A and the second transmitting coil 708B.In one embodiment, the first receiving coil 716A It is corresponding with the first receiving antenna 518 (for example, first receiver 508), and the second receiving coil 716B and the second receiving antenna 518 (for example, second receiver 508) is corresponding.It will be understood by one of ordinary skill in the art that wireless power transmitting described herein System is applicable to be related to any application (for example, charging mobile device, electric vehicle etc.) of the wireless transmission of energy.

In one embodiment, the first transmitting coil 708A and the second transmitting coil 708B can each free transmit circuit 406 exist It is excited under its resonance frequency or close to its resonance frequency.First transmitting coil 708A can produce the first wireless field, and the second hair Ray circle 708B can produce the second wireless field.Explanation is in the first transmitting coil 708A and the second transmitting coil 708B in Fig. 7 Each flux directions.For example, the direction of wireless field may pass through the first transmitting coil 708A and flow into (for example, flux Direction is into the page), and the direction of wireless field may pass through the second transmitting coil 708B outflow (for example, flux directions are to leave The page is towards reader).Sense of current can be counterclockwise in first transmitting coil 708A, and electric current in the second transmitting coil 708B Direction can be clockwise.

As illustrated in figure 7, the first receiving coil 716A can be with the first wireless field for being generated by the first transmitting coil 708A Overlapping.Equally, the second receiving coil 716B can be Chong Die with the second wireless field generated by the second transmitting coil 708B.

In one embodiment, controller 415 can be coupled to the first transmitting coil 708A and the second transmitting coil 708B (example Such as, directly, not shown or indirect).Controller 415 may be configured to control or adjust the first transmitting coil 708A and/or second Transmitting coil 708B make transmitting coil 708A and 708B either or both wirelessly via the first wireless field and/or Second wireless field transfers energy to the first receiving coil 716A, the second receiving coil 716B and/or other receiving coils.Citing For, controller 415 can be controlled for the AC or DC electric power of excitation the first transmitting coil 708A and/or the second transmitting coil 708B Amount.In other embodiments (not shown), another controller can be coupled to the first transmitting coil 708A and/or the second emission lines 708B is enclosed to control or regulate transmitting coil 708A and/or 708B.

In embodiment as illustrated in figure 7, the first transmitting coil 708A and the second transmitting coil 708B group are woven in simultaneously In row arrangement (for example, being spatially separated).In other embodiments (not shown), third transmitting coil overlapping or positioned at being close in At first transmitting coil 708A and the second transmitting coil 708B.

In one embodiment, the first transmitting coil 708A and the second transmitting coil 708B are mutually similar or substantially the same. For example, the first transmitting coil 708A and the second transmitting coil 708B may include material similar or identical, and can have similar Or identical characteristic.

In one embodiment, magnetic shield (for example, below with respect to magnetic shield 854 of Fig. 8 B description) can be placed Below the first transmitting coil 708A and/or the second transmitting coil 708B or on bottom.In addition, magnetic shield is (for example, hereafter Magnetic shield 852 relative to Fig. 8 B description) it can be placed in receiving coil 716A and/or 716B and/or other receiving coils On top or top.The magnetic shield can be configured to prevent or reduce the leakage of the energy wirelessly transmitted.Make For an example, Ferrite Material can be used to be formed for the magnetic shield.

In order to adapt to the requirement of different situations, transmitter 404 may include at least two operation modes for wirelessly Transfer energy to receiver 508.In one embodiment, in the first mode of operation, the hair of the first transmitting coil 708A and second Ray circle 708B (and come across any other transmitting coil) in transmitter 404 is activated and is configured to individually with nothing At least part of energy is transmitted to receiver (for example, the first receiving coil 716A and/or the second receiving coil by line mode 716B).For example, the first transmitting coil 708A can be wirelessly by the energy transmitting of the first amount to receiver.Second hair Ray circle 708B can be independently of the first transmitting coil 708A wirelessly by the energy transmitting of the second amount to receiver.First hair Ray circle 708A and the second transmitting coil 708B can concurrently or non-concurrently emitted energy.

First transmitting coil 708A and/or the second transmitting coil 708B can be based on the first transmitting coil 708A and/or second Rechargeable device in the energy transmission area (for example, charging zone) of transmitting coil 708B (for example, the first receiving coil 716A and/or Second receiving coil 716B) presence and activate.As used herein, energy transmission area (for example, charging zone) can for wherein by Coil or antenna generate the region of wireless field.

In the first embodiment of first operator scheme, the first transmitting coil 708A and the second transmitting coil 708B are through individual Ground activation.It can be based on the first receiving coil 716A in one or both energy transmission area in transmitting coil 708A and 708B or The presence of two receiving coil 716B and activate the first transmitting coil 708A and/or the second transmitting coil 708B.First transmitting coil 708A wirelessly can transfer energy to receiving coil (for example, the first receiving coil 716A or via the first wireless field Two receiving coil 716B).Second transmitting coil 708B wirelessly can transfer energy to reception line via the second wireless field It encloses (for example, receiving coil 716A or receiving coil 716B).First wireless field and the second wireless field can be substantial non-coupled nothing The field of line.Therefore, energy respectively can be delivered to receiving coil based on it by the first transmitting coil 708A and the second transmitting coil 708B Ability and independently activate.

In the second embodiment of first operator scheme, activate in the first transmitting coil 708A and the second transmitting coil 708B One of.Transmitting coil 708A or 708B through activating can wirelessly transfer energy to receiving coil (for example, first connects Take-up circle 716A or the second receiving coil 716B).Transmitting coil 708A or 708B through activating can be based on through activating transmitting coil The presence of first receiving coil 716A or the second receiving coil 716B in the energy transmission area of 708A or 708B and activate.If (for example) another receiver (for example, second receiving coil 716B or the first receiving coil 716A) is present in original un activation In the energy transmission area of transmitting coil 708A or 708B, then without activating wirelessly to transfer energy to receiving coil Transmitting coil 708A or 708B can be activated wirelessly to transfer energy to another receiver.First wireless field It can be again substantial non-coupled wireless field with the second wireless field.Therefore, the first transmitting coil 708A and the second transmitting coil Energy is respectively wirelessly emitted to different receiving coils by 708B.

In one embodiment, in this second mode of operation, the first transmitting coil 708A and the second transmitting coil 708B is through swashing It lives and is configured to jointly wirelessly transfer energy to receiver.It can be based on one in transmitting coil 708A and 708B Or both energy transmission area in the first receiving coil 716A or the second receiving coil 716B presence and activate the first emission lines Enclose 708A and the second transmitting coil 708B.For example, the first transmitting coil 708A and the second transmitting coil 708B can together with Wireless mode is by the energy transmitting of determined amount to receiver.First transmitting coil 708A and the second transmitting coil 708B can be respective Contribution is transmitted wirelessly to some or all of the energy of the identified amount of receiver.In some embodiments, may be used The electric power more a greater amount of than exporting in the first mode of operation in this second mode of operation.It is retouched in more detail below with respect to Fig. 8 A-B State second operator scheme.

Fig. 8 A is to illustrate wirelessly to transfer energy to double loop receiving coil 816A and 816B for charging purposes Two transmitting coils top view 800 figure.In one embodiment, the first transmitting coil is the first transmitting coil 708A, and Second transmitting coil is the second transmitting coil 708B.In another embodiment, the first receiving coil 816A and the second receiving coil 816B is corresponding (for example, receiver 508 includes two receiving antennas 518) with identical receiver.As illustrated in figure 8 a, line is received Circle 816A and/or 816B can be positioned on close at the first transmitting coil 708A and/or the second transmitting coil 708B.Receiving coil 816A and/or 816B can be produced with the first wireless field generated by the first transmitting coil 708A and/or by the second transmitting coil 708B Raw the second wireless field overlapping.

As illustrated in figure 8 a, sense of current can be counterclockwise, and the second transmitting coil in the first transmitting coil 708A Sense of current can be clockwise in 708B.More precisely, because the first transmitting coil 708A neutralizes the second transmitting coil Electric current in 708B is alternating current (AC) signal, so the electric current in transmitting coil 708A and 708B can be at opposite phase.Cause This, sense of current can be clockwise in the first receiving coil 816A, and sense of current can be in the second receiving coil 816B Counterclockwise.More precisely, because it is AC signal, institute that the first receiving coil 816A, which neutralizes the electric current in the second receiving coil 816B, It can be at opposite phase with the electric current in receiving coil 816A and 816B.

Fig. 8 B is to illustrate wirelessly to transfer energy to double loop receiving coil 816A and 816B for charging purposes Two transmitting coils side view 850 figure.In one embodiment, the first transmitting coil is the first transmitting coil 708A, and Second transmitting coil is the second transmitting coil 708B.Similar to Fig. 8 A, the first receiving coil 816A and the second receiving coil 816B It is corresponding (for example, receiver 508 includes two receiving antennas 518) with identical receiver.As illustrated in figure 8 a, receiving coil 816A and/or 816B can be positioned in the close proximity of the first transmitting coil 708A and/or the second transmitting coil 708B.Receive line Enclosing 816A and/or 816B can be with the first wireless field generated by the first transmitting coil 708A and/or by the second transmitting coil 708B The the second wireless field overlapping generated.

Magnetic shield 852 can be placed in above receiving coil 816A and 816B or on top.Magnetic shield 854 can be put It sets below the first transmitting coil 708A and the second transmitting coil 708B or on bottom.Magnetic shield 852 and/or 854 can benefit It is formed with Ferrite Material.Magnetic shield 852 and 854 can be used to prevent or reduce letting out for the energy wirelessly transmitted Leakage.

In an embodiment of second operator scheme, the first transmitting coil 708A and the second strong coupling of transmitting coil 708B It closes, and there are the leakages of substantial little energy between transmitter 404 and receiver 508.For example, as illustrated in fig. 8b, First transmitting coil 708A and the second transmitting coil 708B can be configured to generate the first and second wireless fields make it is described two The flux of wireless field has opposite opposite phase.In the case where opposite opposite phase, the line of flux of two wireless fields can be company It is continuous and be present in closed loop.First receiving coil 816A and the second receiving coil 816B can be by connecting appropriate terminal It is electrically connected in series to form equivalent single receiving coil, so that electric current flowing has same phase.

It is configured between described two operation modes described herein and selects controllers such as controller 415 And/or switching.Controller 415 can be configured to perform the selection and/or switching to realize from transmitter 404 to receiver 508 effective and/or safe wireless power transmitting.

In one embodiment, controller 415 be configured to measurement transmitter 404 (for example, the first transmitting coil 708A and/ Or the second transmitting coil 708B) and receiver 508 (for example, receiving coil 716A, 716B 816A and/or 816B) between shifting Position.It is based at least partially on whether receiving coil 716A, 716B, 816A or 816B (or receiver 508) are positioned at the first transmitting In one or both energy transmission area in coil 708A and the second transmitting coil 708B, controller 415 be can be configured to activate In first transmitting coil 708A and the second transmitting coil 708B one or both (for example, setting the first transmitting coil 708A and/or The current phase and/or current power level of second transmitting coil 708B) make wirelessly from the first transmitting coil 708A And/or second the level of the transmitting coil 708B energy that is transmitted to receiving coil 716A, 716B, 816A or 816B be enough for load Charging or power supply.Controller 415 can be configured to activate the first emission lines in first operator scheme and/or second operator scheme Enclose one or both in 708A and the second transmitting coil 708B.

In some embodiments, controller 415 is configured to the first transmitting coil 708A during measurement first operator scheme And second coupling between receiving coil 716A, 716B, 816A or 816B of each of transmitting coil 708B it is horizontal.At it In its embodiment, controller 415 is configured to the first transmitting coil 708A and the second emission lines during measurement second operator scheme The coupling enclosed between 708B is horizontal.In a further embodiment, controller 415 be configured to measurement first operator scheme and/or Energy leakage during second operator scheme is horizontal.Due in measurement the first transmitting coil 708A and the second transmitting coil 708B Coupling level, measurement the first transmitting coil 708A and second between each and receiving coil 716A, 716B, 816A or 816B Coupling between transmitting coil 708B is horizontal and/or measures the level of energy leakage, and controller 415 may be configured to select first One of operation mode or second operator scheme are wirelessly from the first transmitting coil 708A and/or the second transmitting coil 708B and receiving coil 716A, 716B, 816A and/or 816B transmit energy.

In one embodiment, because the first transmitting coil 708A and the second transmitting coil 708B and receiving coil 716A, Displacement and/or coupling between 716B, 816A or 816B is non-constant, so controller 415 is configured to monitor at least one ginseng Number.The parameter may include the position of receiver 508, receiving coil 716A, 716B, 816A or 816B position, (for example, with The energy of wireless mode transmitting) between the level of energy leakage, the first transmitting coil 708A and the second transmitting coil 708B Coupling and/or the first transmitting coil 708A and/or the second transmitting coil 708B and receiving coil 716A, 716B, 816A and/or Coupling between 816B.Be based at least partially on the change of at least one of institute's monitored parameter, controller 415 can be configured with The phase and/or power level for adjusting the first transmitting coil 708A and/or the second transmitting coil 708B are (for example, in the first operation Switch between mode and second operator scheme).For example, controller 415 can be configured to be at least partially based on and monitor ginseng Whether number switches between first operator scheme and second operator scheme beyond threshold value.

In other embodiments, implement other system and method for determining appropriate operation mode.For example, sensor, Mechanical constraint, mechanical registeration and/or fellow may include in such as wireless powers transmission system such as wireless power transmission system 100 In, appropriate operation mode is determined with auxiliary.

Efficiency and safety for the wireless energy transfer being further improved between transmitter 404 and receiver 508, transmitting Device 404 may include communication module, be configured to the communication link established between transmitter 404 and receiver 508.Citing comes It says, transmitter 404 and receiver 508 can be transmitted via the antenna separated with transmitting coil described herein and receiving coil Data and/or information.As another example, transmitter 404 and receiver 508 can via transmitting coil described herein and Receiving coil transmits data and/or information.

In one embodiment, can emit between transmitter 404 and receiver 508 at least two classes via communication link The information of type.The information of the first kind may include about such as relative shift, antenna size (for example, coil size) and/or institute The information of the wireless energy transfers ability such as wireless power of expectation.The information of the first kind before wireless energy transfer or can be opened It is transmitted when the beginning.The information of Second Type may include about such as energy transmissions state such as coupling parameter, energy leakage and/or displacement The information of update.The information of Second Type can transmit during wireless energy transfer.

As described above, transmitting described various embodiments herein for wireless energy or electric power can exist wherein Implement in the example of more than two transmitting coils.For example, transmitter 404 may include three (phases as follows of transmitting antenna 414 For described by Fig. 9) or four transmitting antennas 414 (as follows relative to described by Figure 10).Although Fig. 9 and 10 is by transmitting antenna 414 explanations are annular shape, but this is only exemplary, because transmitting antenna 414 can be in the form of any shape.This shape can Based on field distribution requirement.

Fig. 9 is the first emission lines illustrated in the wireless power transmission system such as the wireless power transmission system 100 of Fig. 1 Enclose the top view 900 of 908A, the second transmitting coil 908B and third transmitting coil 908C and the figure of side view 950.Such as bowing for Fig. 9 Illustrated in view 900, transmitting coil 908A, 908B and/or 908C can be positioned on be arranged side-by-side in (for example, spatially dividing From).In one embodiment, transmitting coil 908A, 908B and/or 908C is bordered on and equally spaced from each other or almost second countable each other.Another In one embodiment (not shown), one or more of transmitting coil 908A, 908B and/or 908C overlapping.

As illustrated in the side view 950 of Fig. 9, energy is in transmitting coil 908A, 908B and/or 908C and receiving coil Wireless transmission between 916.First transmitting coil 908A can be configured to generate the first wireless field, and the second transmitting coil 908B can be through Configuration is to generate the second wireless field, and third transmitting coil 908C can be configured to generate third wireless field.In some embodiments In, transmitting coil 908A, 908B and/or 908C can produce the alternate field direction in each subsequent coil.In other embodiments In, transmitting coil 908B can have 120 degree of the phase offset compared with transmitting coil 908A.Equally, transmitting coil 908C can With 120 degree of the phase offset compared with transmitting coil 908B, and transmitting coil 908A can have and transmitting coil 908C phase 120 degree of phase offset of ratio.This phase offset can along central axis (for example, extend through transmitting coil 908A, 908B and The axis at the combined center of 908C) total flux 0 is generated, and be placed on around the combination of transmitting coil 908A, 908B and 908C Sensing coil allows the more acurrate positioning of receiver (for example, receiver 508) to minimize flux leakage.

In one embodiment, transmitting antenna 414 may include one or more of transmitting coil 908A, 908B and/or 908C. Equally, receiving antenna 518 may include receiving coil 916, can by as described above relative to receiving coil 816A and 816B is electrically connected in series multiple coils and implements.

In one embodiment, controller 415 can be coupled directly or indirectly to transmitting coil 908A, 908B and/or 908C.Hair Ray circle 908A, 908B and/or 908C can be by controllers 415 as described herein in first operator scheme or the second operation mould It is operated in formula.In addition, controller 415 can be configured to activate one or more of transmitting coil 908A, 908B and/or 908C (for example, current phase and/or current power level of setting transmitting coil 908A, 908B and/or 908C) makes with wireless parties Formula is transmitted to receiving coil 916 from transmitting coil 908A, 908B and/or 908C and/or is present in transmitting coil 908A, 908B And/or the level of the energy of any other receiving coil in the energy transmission area of 908C is enough for load charging or power supply.It lifts Example for, controller 415 can be configured with individually set the current phase of transmitting coil 908A, 908B and/or 908C and/or Current power level makes energy wirelessly individually be transmitted to reception line from transmitting coil 908A, 908B and/or 908C Circle 916 and/or any other receiving coil being present in the energy transmission area of transmitting coil 908A, 908B and/or 908C.Make For another example, controller 415 be can be configured jointly to set the current phase of transmitting coil 908A, 908B and/or 908C And/or current power level is transmitted to energy wirelessly jointly from transmitting coil 908A, 908B and/or 908C to connect Take-up circle 916 and/or any other reception line being present in the energy transmission area of transmitting coil 908A, 908B and/or 908C Circle.

In one embodiment, controller 415 can be configured with measure receiving coil 916 and transmitting coil 908A, 908B and/ Or the coupling level between each of 908C, the coupling level between transmitting coil 908A, 908B and/or 908C, and/or Energy leakage during different operation modes is horizontal.Due to measurement receiving coil 916 and transmitting coil 908A, 908B and/or Coupling level between each of 908C, the coupling between measurement transmitting coil 908A, 908B and/or 908C are horizontal, and/ Or measurement energy leakage is horizontal, controller 415 may be configured to select one of different operation modes wirelessly will Energy is transmitted to receiving coil 916 from transmitting coil 908A, 908B and/or 908C and/or is present in transmitting coil 908A, 908B And/or any other receiving coil in the energy transmission area of 908C.

Figure 10 is the first transmitting illustrated in the wireless power transmission system such as the wireless power transmission system 100 of Fig. 1 The top view 1000 of coil 1008A, the second transmitting coil 1008B, third transmitting coil 1008C and the 4th transmitting coil 1008D With the figure of side view 1050.As illustrated in the top view 1000 of Figure 10, transmitting coil 1008A, 1008B, 1008C and/or 1008D, which can be positioned on, to be arranged side-by-side.In one embodiment, transmitting coil 1008A, 1008B, 1008C and/or 1008D be each other Border on and equally spaced from each other or almost second countable.In another embodiment (not shown), transmitting coil 1008A, 1008B, 1008C and/ Or one or more of 1008D overlapping.

As illustrated in the side view 1050 of Figure 10, energy is wirelessly in transmitting coil 1008A, 1008B, 1008C And/or it is transmitted between 1008D and receiving coil 1016.First transmitting coil 1008A can be configured to generate the first wireless field, the Two transmitting coil 1008B can be configured to generate the second wireless field, third transmitting coil 1008C can be configured to generate third without The field of line, and the 4th transmitting coil 1008D can be configured to generate the 4th wireless field.Transmitting coil 1008B can have and emission lines 90 degree of the phase offset that circle 1008A is compared.Equally, transmitting coil 1008C can have 90 degree compared with transmitting coil 1008B Phase offset, transmitting coil 1008D can have 90 degree of the phase offset compared with transmitting coil 1008C, and transmitting coil 1008A can have 90 degree of the phase offset compared with induction coil 1008D.

In one embodiment, transmitting antenna 414 may include in transmitting coil 1008A, 1008B, 1008C and/or 1008D One or more.Equally, receiving antenna 518 may include receiving coil 1016, can be by as described above relative to reception line Circle 816A and 816B is electrically connected in series multiple coils and implements.

In one embodiment, controller 415 can be coupled directly or indirectly to transmitting coil 1008A, 1008B, 1008C and/ Or 1008D.Transmitting coil 1008A, 1008B, 1008C and/or 1008D can be by controllers as described herein 415 first It is operated in operation mode or second operator scheme.In addition, controller 415 can be configured with activate transmitting coil 1008A, 1008B, One or more of 1008C and/or 1008D are (for example, the electricity of setting transmitting coil 1008A, 1008B, 1008C and/or 1008D Stream phase and/or current power level) wirelessly to pass from transmitting coil 1008A, 1008B, 1008C and/or 1008D It is delivered to receiving coil 1016 and/or is present in the energy transmission area of transmitting coil 1008A, 1008B, 1008C and/or 1008D Any other receiving coil energy be enough for load charging or power supply.For example, controller 415 can be configured with individual The current phase and/or current power level of ground setting transmitting coil 1008A, 1008B, 1008C and/or 1008D make energy Wirelessly individually from transmitting coil 1008A, 1008B, 1008C and/or 1008D be transmitted to receiving coil 1016 and/or Any other receiving coil being present in the energy transmission area of transmitting coil 1008A, 1008B, 1008C and/or 1008D.Make For another example, controller 415 be can be configured jointly to set transmitting coil 1008A, 1008B, 1008C and/or 1008D Current phase and/or current power level make energy wirelessly jointly from transmitting coil 1008A, 1008B, 1008C And/or 1008D is transmitted to receiving coil 1016 and/or is present in transmitting coil 1008A, 1008B, 1008C and/or 1008D Any other receiving coil in energy transmission area.

In one embodiment, controller 415 can be configured with measure receiving coil 1016 and transmitting coil 1008A, Coupling between each of 1008B, 1008C and/or 1008D is horizontal, transmitting coil 1008A, 1008B, 1008C and/or Coupling level between 1008D and/or the energy leakage during different operation modes are horizontal.Due to measuring receiving coil 1016 With the coupling between each of transmitting coil 1008A, 1008B, 1008C and/or 1008D is horizontal, measurement transmitting coil Coupling between 1008A, 1008B, 1008C and/or 1008D is horizontal, and/or measurement energy leakage is horizontal, and controller 415 can be through Configuration is to select one of different operation modes wirelessly by energy from transmitting coil 1008A, 1008B, 1008C And/or 1008D is transmitted to receiving coil 1016 and/or is present in transmitting coil 1008A, 1008B, 1008C and/or 1008D Any other receiving coil in energy transmission area.

Figure 11 is the flow chart for wirelessly transmitting the exemplary method 1100 of energy.In one embodiment, it flows Step in journey Figure 110 0 can be executed by transmitter 404.Although the method for describing flow chart 1100 with reference to certain order herein, But in various embodiments, can frame herein perform in different order, or omit the frame and additional frame can be added.It is affiliated The those skilled in the art in field will be understood that the method for flow chart 1100 can be configured to be another via wireless power transmitting Implement in any device of device charging or power supply.

At frame 1102, by the first transmitting antenna when the energy that at least one described receiver is in the first transmitting antenna passes The first wireless field is generated when passing area.In one embodiment, the first transmitting antenna is the first transmitting coil 708A.In another embodiment In, when the first transmitting antenna is through activating, the electric current in the first transmitting antenna flows in a first direction.In one embodiment, At least one described receiving antenna is one of receiving coil 716A, 716B, 816A, 816B, 916 and/or 1016.In frame At 1104, by second transmitting antenna spaced apart with the first transmitting antenna when at least one described receiver is in second The second wireless field is generated when the energy transmission area of transmitting antenna.In one embodiment, when the second transmitting antenna is through activating, second Electric current in transmitting antenna flows in a second direction different from the first direction.

At frame 1106, whether be in based at least one described receiver in the first wireless field and the second wireless field one Or both energy transmission area and activate at least one of the first transmitting antenna or the second transmitting antenna.At frame 1108, when Control the following terms when both first transmitting antenna and second transmitting antenna are through activating: first transmitting antenna and Whether second transmitting antenna independently wirelessly transfers energy to identical reception via the first and second wireless fields Device；Whether first transmitting antenna and second transmitting antenna are jointly wirelessly via the first and second wireless fields Transfer energy to the identical receiver；Or wirelessly whether first transmitting antenna and second transmitting antenna Different receivers are transferred energy to via the first and second wireless fields.

Figure 12 is the functional block diagram according to the transmitter 1200 of exemplary embodiment.Transmitter 1200 include for relative to Device 1202, device 1204, device 1206 and the device 1208 for the various movements that Fig. 1-10 is discussed.Transmitter 1200 includes to be used for The is generated when at least one described receiver is in the energy transmission area for the device for generating first wireless field The device 1202 of one wireless field.In one embodiment, for being in described described for generating when at least one described receiver The device 1202 that the first wireless field is generated when the energy transmission area of the device of the first wireless field can be configured to perform above relatively One or more of function discussed in frame 1102.Transmitter 1200 includes for when at least one described receiver is in institute The device 1204 of the second wireless field is generated when stating the energy transmission area of the device for generating second wireless field.Implement one In example, for being in described for generating the energy transmission area of the device of second wireless field when at least one described receiver When generate the second wireless field device 1204 can be configured to perform above in relation in function discussed in frame 1104 one or More persons.

Transmitter 1200 is further included for whether being in first wireless field based at least one described receiver With one or both energy transmission area in second wireless field and activate described for generating the dress of first wireless field It sets or described for generating the device 1206 of at least one of device of second wireless field.In one embodiment, it is used for One or both energy in first wireless field and second wireless field whether is in based at least one described receiver It measures transmission region and activates the device for generating first wireless field or described for generating second wireless field The device 1206 of at least one of device can be configured to perform above in relation in function discussed in frame 1106 one or More persons.Transmitter 1200 is further included for when the device for generating first wireless field and described for generating The device 1208 of the following terms is controlled when both devices of second wireless field are through activating: described for generating first nothing Whether the device of the field of line and the device for generating second wireless field are independently wirelessly via first and the Two wireless fields transfer energy to identical receiver；The device for generating first wireless field and described for generating It is described whether the device of second wireless field jointly wirelessly transfers energy to via the first and second wireless fields Identical receiver；Or the device and the dress for being used to generate second wireless field for generating first wireless field It sets and whether wirelessly transfers energy to different receivers via the first and second wireless fields.In one embodiment, it is used for When both the device for generating first wireless field and the device for generating second wireless field are through swashing When living the device 1208 of control the following terms can be configured to perform above in relation in function discussed in frame 1108 one or More persons: whether the device for generating first wireless field and the device for generating second wireless field are only On the spot identical receiver wirelessly is transferred energy to via the first and second wireless fields；It is described to be used to generate described first Whether the device of wireless field and the device for generating second wireless field are jointly wirelessly via the first He Second wireless field transfers energy to the identical receiver；Or it is described for generating the device of first wireless field and described Whether the device for generating second wireless field wirelessly transfers energy to not via the first and second wireless fields Same receiver.

Each operation of method as described above can be executed by being able to carry out any suitable device of the operation, example Such as each hardware and or software component, circuit and/or module.In general, any operation illustrated in figure can be by being able to carry out The corresponding function device for stating operation executes.The device for generating the first wireless field includes the first transmitting coil 708A.Institute Stating the device for generating the second wireless field includes the second transmitting coil 708B.The device for activation and described for controlling The device of system includes controller 415.

Any one of a variety of different technologies and skill can be used to indicate information and signal.For example, can by voltage, Electric current, electromagnetic wave, magnetic field or magnetic particle, light field or light particle or any combination thereof indicate to refer in entire above description Data, instruction, order, information, signal, position, symbol and chip.

Various illustrative components, blocks, module, circuit and algorithm steps in conjunction with described in embodiment disclosed herein can be real It applies as the combination of electronic hardware, computer software or both.This of hardware and software interchangeability to clearly illustrate, above greatly Various Illustrative components, block, module, circuit and step are described about its functionality on body.Such functionality is implemented as Hardware or software depend on specific application and force at the design constraint of whole system.For each specific application with difference Mode implements described function, but these embodiment decisions should not be interpreted as causing a departure from implementation of the invention The range of example.

The following can be used and described various illustrative to be practiced or carried out in conjunction with embodiment disclosed herein Block, module and circuit: general processor, digital signal processor (DSP), specific integrated circuit (ASIC), field programmable gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components or its be designed to hold Any combination of row functionality described herein.General processor can be microprocessor, but in alternative solution, processor can be Any conventional processor, controller, microcontroller or state machine.The also implementable combination for computing device of processor, such as The combination of DSP and microprocessor, the combination of multi-microprocessor, one or more microprocessor combination DSP cores or any other Such configuration.

The step of method or algorithm for describing in conjunction with embodiment disclosed herein and function can be embodied directly in firmly In part, the combination by the software module or described the two of processor execution.If implemented in software, then can using function as One or more instructions or codes and be stored in tangible non-transitory computer-readable media or via tangible non-transitory Computer-readable media is emitted.Software module can reside in random access memory (RAM), flash memory, read-only deposit Reservoir (ROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM), register, hard disk, self-mountable & dismountuble magnetic In the storage media of disk, CD ROM or any other form known in the art.Storage media are coupled to processor, so that Processor can read information from storage media and write information to storage media.In alternative solution, storage media can be with place It is integrated to manage device.As used herein, disk and CD include compact disk (CD), laser-optical disk, optical compact disks, number Image and sound optical disk (DVD), floppy discs and Blu-ray Disc, wherein disk usually magnetically reproduce data, and CD is using swashing Light is reproduce data optically.The combination of above-mentioned items should also be included within the scope of computer-readable media.Processor and Storage media can reside in ASIC.ASIC can reside in user terminal.In alternative solution, processor and storage media can It is resident in the user terminal as discrete component.

In order to summarize the present invention, there have been described certain aspects of the invention, advantage and novel features.It will be appreciated that It not necessarily can these all advantages of any particular embodiment realization according to the present invention.It therefore, can be according to such as taught herein next It realizes or optimizes the mode of an advantage or one group of advantage to embody or carry out the present invention, and not necessarily realize that such as this paper may be taught The further advantage shown or suggested.

It will be apparent that the various modifications of above-described embodiment, and can be the case where not departing from the spirit or scope of the present invention It is lower that generic principles defined herein is applied to other embodiments.Therefore, the present invention is not intended to be limited to shown herein Embodiment, but the widest scope consistent with principle disclosed herein and novel feature should be endowed.

Claims

1. a kind of equipment for wirelessly transferring energy at least one receiving antenna of at least one receiver, institute Stating equipment includes:

First transmitting antenna is configured to be at least partly at first transmitting antenna when at least one described receiver Energy transmission area when generate the first wireless field；

Second transmitting antenna is configured to be at least partly at when at least one described receiver different from first hair The second wireless field is generated when the energy transmission area for second transmitting antenna for penetrating the energy transmission area of antenna；And

Controller is operatively coupled to first transmitting antenna and second transmitting antenna and is configured to based on described Whether at least one receiver is in one or both energy transmission area in first wireless field and second wireless field And at least one of first transmitting antenna or second transmitting antenna are activated,

The controller is further configured to when both first transmitting antenna and second transmitting antenna are through activating Control the following terms: when identical receiver is located at the position that first transmitting antenna and second transmitting antenna overlap The first transmitting antenna of Shi Suoshu and second transmitting antenna whether independently wirelessly via first wireless field and Second wireless field transfers energy to the identical receiver；When identical receiver is located at first transmitting antenna and institute First transmitting antenna described in when stating the position that the second transmitting antenna overlaps and second transmitting antenna whether jointly with Wireless mode transfers energy to the identical receiver via first wireless field and second wireless field；Or described Whether one transmitting antenna and second transmitting antenna are wirelessly via first wireless field and second wireless field Different receivers are transferred energy to, the controller is further configured to when first transmitting antenna and second hair Penetrate antenna jointly wirelessly transferred energy to via first wireless field and second wireless field it is described identical When receiver, the electric current of the current phase of relevant first transmitting antenna and second transmitting antenna between coordination Phase, and the current power level of relevant first transmitting antenna and the electricity of second transmitting antenna between coordination Flow power level.

2. equipment according to claim 1, wherein first transmitting antenna is activated via first wireless field At least one described receiving antenna is transferred energy to, and wherein the controller is further configured to:

At least one of below measurement: first between first transmitting antenna and at least one described receiving antenna couples Second between horizontal, described first transmitting antenna and second transmitting antenna couples horizontal or described first transmitting antenna The levels of leakage of the energy transmission between at least one described receiving antenna；And

Second coupling that is at least horizontal based on first coupling that measures, measuring is horizontal or the levels of leakage that measures At least one of activation second transmitting antenna with via second wireless field transfer energy to it is described at least one Receiving antenna.

3. equipment according to claim 1, wherein the controller is further configured to via first transmitting day First flux phase of at least one of line or second transmitting antenna adjusting first wireless field or the first flux are strong At least one of the second flux phase or the second rate of flow of degree or second wireless field.

4. equipment according to claim 3, wherein the controller is further configured to via first transmitting day At least one of line or second transmitting antenna adjust the first flux phase or described the of first wireless field At least one of described second flux phase of two wireless fields makes the first flux phase and the second flux phase Generally on the contrary, and the line of flux of first wireless field and second wireless field be continuous and be present in closed loop In.

5. equipment according to claim 1 further comprises communication module, the communication module is operatively coupled to institute It states controller and is configured between the equipment and at least one described receiver and establish communication link, wherein the control Device is further configured to:

At least one charging requirement is received from least one described receiver via the communication link；And

It is at least partially based on from received at least one charging requirement setting first hair of at least one described receiver Penetrate the current phase of at least one of antenna or second transmitting antenna.

6. equipment according to claim 5, wherein the communication module be further configured to the equipment with it is another Another communication link is established between receiver, wherein the controller is further configured to:

At least another charging requirement is received from another receiver via another communication link；

First transmitting antenna is activated to transfer energy at least one described receiver via first wireless field；With And

Second transmitting antenna is activated to transfer energy to another receiver via second wireless field.

7. the method that one kind wirelessly transfers energy at least one receiving antenna of at least one receiver, the side Method includes:

By the first transmitting antenna when the energy that at least one described receiver is at least partly at first transmitting antenna passes The first wireless field is generated when passing area；

By the second transmitting antenna when at least one described receiver is at least partly at different from first transmitting antenna The second wireless field is generated when the energy transmission area of second transmitting antenna in the energy transmission area；

One or both in first wireless field and second wireless field whether is in based at least one described receiver Energy transmission area and activate at least one of first transmitting antenna or second transmitting antenna；

The following terms is controlled when both first transmitting antenna and second transmitting antenna are through activating: when identical receiver First transmitting antenna described in when positioned at the position that first transmitting antenna and second transmitting antenna overlap and described Whether the second transmitting antenna is independently wirelessly via first wireless field and second wireless field by energy transmission To the identical receiver；When identical receiver is located at first transmitting antenna and second transmitting antenna overlaps Whether the first transmitting antenna described in when position and second transmitting antenna are jointly wirelessly wireless via described first Field and second wireless field transfer energy to the identical receiver；Or first transmitting antenna and described second emits Whether antenna wirelessly transfers energy to different receivers via first wireless field and second wireless field；

When first transmitting antenna and second transmitting antenna jointly wirelessly via first wireless field and When second wireless field transfers energy to the identical receiver, relevant first transmitting antenna between coordination Current phase and second transmitting antenna current phase；And

When first transmitting antenna and second transmitting antenna jointly wirelessly via first wireless field and When second wireless field transfers energy to the identical receiver, relevant first transmitting antenna between coordination Current power level and second transmitting antenna current power level.

8. according to the method described in claim 7, wherein activating in first transmitting antenna or second transmitting antenna At least one include activate first transmitting antenna with via first wireless field transfer energy to it is described at least one Receiving antenna, the method further includes:

9. according to the method described in claim 7, it further comprises via first transmitting antenna or second transmitting The the first flux phase or the first rate of flow of at least one of antenna adjusting first wireless field or second nothing At least one of second flux phase of the field of line or the second rate of flow.

10. according to the method described in claim 9, wherein adjusting the first flux phase or the first flux of first wireless field At least one of intensity includes adjusting institute via at least one of first transmitting antenna or second transmitting antenna State at least one of the first flux phase of the first wireless field or the second flux phase of second wireless field So that the first flux phase and the second flux phase are generally on the contrary, and first wireless field and second nothing The line of flux of the field of line is continuous and is present in closed loop.

11. according to the method described in claim 7, further comprising:

Communication link is established between first transmitting antenna or second transmitting antenna and at least one described receiver；

It is at least partially based on from received at least one charging requirement setting first hair of at least one described receiver Penetrate the phase of at least one of antenna or second transmitting antenna.

12. the method according to claim 11, further comprising:

Another communication link is established between first transmitting antenna or second transmitting antenna and another receiver；

13. a kind of equipment for wirelessly transferring energy at least one receiving antenna of at least one receiver, The equipment includes:

For being at least partly at the energy of the device for being used to generate the first wireless field when at least one described receiver The device of first wireless field is generated when transmission region；

For being at least partly at the energy of the device for being used to generate the second wireless field when at least one described receiver The device of second wireless field is generated when transmission region；

For based at least one described receiver whether be in first wireless field and second wireless field one or The energy transmission area of the two and activate the device for generating first wireless field or described for generating described second The device of at least one of the device of wireless field；

For when the device for generating first wireless field and the device for being used to generate second wireless field The device of the following terms is controlled when the two is through activating: when identical receiver is located at the first transmitting antenna and the second transmitting antenna occurs For generating the device and the dress for being used to generate second wireless field of first wireless field described in when the position of overlapping Set whether independently wirelessly transferred energy to via first wireless field and second wireless field it is described identical Receiver；Described in when identical receiver is located at the position that first transmitting antenna and second transmitting antenna overlap Whether the device and the device for generating second wireless field for generating first wireless field are jointly with nothing Line mode transfers energy to the identical receiver via first wireless field and second wireless field；Or it described is used for Generate first wireless field device and it is described for generate second wireless field device whether wirelessly via First wireless field and second wireless field transfer energy to different receivers；

For when the device for generating first wireless field and the device for being used to generate second wireless field Jointly the identical receiver wirelessly is transferred energy to via first wireless field and second wireless field When, the relevant current phase for generating the device of first wireless field and described for generating between coordination The device of the current phase of the device of second wireless field；And

For when the device for generating first wireless field and the device for being used to generate second wireless field Jointly the identical receiver wirelessly is transferred energy to via first wireless field and second wireless field When, it the relevant current power level for generating the device of first wireless field and described is used between coordination Generate the device of the current power level of the device of second wireless field.

14. equipment according to claim 13, wherein described for generating the device of first wireless field for activating Or the device for generating at least one of device of second wireless field includes described for generating for activating The device of first wireless field is to transfer energy to the dress of at least one receiving antenna via first wireless field It sets, the equipment further comprises:

For measuring at least one of following device: the first coupling between the equipment and at least one described receiving antenna Heshui is flat, the between the device and the device for generating the second wireless field for generating first wireless field The levels of leakage of two coupling levels or the energy transmission between the equipment and at least one described receiving antenna；And

For the leakage that second coupling at least horizontal based on first coupling that measures, measuring is horizontal or measures At least one of level activation device for generating the second wireless field is to pass energy via second wireless field It is delivered to the device of at least one receiving antenna.

15. equipment according to claim 13 further comprises for via described wireless for generating described first The device of field or first for generating at least one of device of the second wireless field adjusting first wireless field are led to Measure at least one of phase or the second flux phase or the second rate of flow of the first rate of flow or second wireless field Device.

16. equipment according to claim 15, wherein the first flux phase for adjusting first wireless field or the The device of at least one of one rate of flow includes the device for following operation: via described for generating first nothing The device of the field of line is described for generating the described of at least one of device of the second wireless field adjusting first wireless field At least one of first flux phase or the second flux phase of second wireless field make the first flux phase The line of flux of generally opposite and described first wireless field and second wireless field is continuous with the second flux phase for position And be present in closed loop.

17. equipment according to claim 13, further comprising:

For establishing the device of communication link between the equipment and at least one described receiver；

For the device of at least one charging requirement to be received from least one described receiver via the communication link；And

The use is set for being at least partially based on from least one received described charging requirement of at least one described receiver In the device that generates the first wireless field or described for generating the phase of at least one of the device of the second wireless field Device.

18. equipment according to claim 17, further comprising:

For establishing the device of another communication link between the equipment and another receiver；

For the device of at least another charging requirement to be received from another receiver via another communication link；

For activating the device for generating first wireless field to transfer energy to via first wireless field The device of at least one receiver；And

It is described described to be transferred energy to via second wireless field for generating the device of the second wireless field for activating The device of another receiver.

19. equipment according to claim 13, wherein the device for generating first wireless field includes first Transmitting antenna, wherein the device for generating the second wireless field includes the second transmitting antenna, and wherein described for activating Device include controller.

20. a kind of non-transitory computer-readable media comprising the code for causing equipment to perform the following operation when executed:

Using the first transmitting antenna when at least one receiver is at least partly at the energy transmission of first transmitting antenna The first wireless field is generated when area；

Using the second transmitting antenna when at least one described receiver is at least partly at different from first transmitting antenna The energy transmission area second transmitting antenna energy transmission area when generate the second wireless field；

21. media according to claim 20 further comprise causing equipment to perform the following operation when executed Code:

First transmitting antenna is activated to transfer energy at least one described receiving antenna via first wireless field；

At least one of below measurement: first between the equipment and at least one described receiving antenna couples horizontal, institute State second between the first transmitting antenna and second transmitting antenna couple the horizontal or described equipment with it is described at least one connect Receive the levels of leakage of the energy transmission between antenna；And

22. media according to claim 20 further comprise the generation for causing equipment to perform the following operation when being executed Code: the first of first wireless field is adjusted via at least one of first transmitting antenna or second transmitting antenna In the second flux phase or the second rate of flow of flux phase or the first rate of flow or second wireless field at least One.

23. media according to claim 22 further comprise the generation for causing equipment to perform the following operation when being executed Code: it is adjusted described in first wireless field via at least one of first transmitting antenna or second transmitting antenna At least one of first flux phase or the second flux phase of second wireless field make the first flux phase Position is with the second flux phase generally on the contrary, and the line of flux of first wireless field and second wireless field is continuous And be present in closed loop.

24. media according to claim 20 further comprise causing equipment to perform the following operation when executed Code:

Communication link is established between the equipment and at least one described receiver；

25. media according to claim 24 further comprise causing equipment to perform the following operation when executed Code:

Another communication link is established between the equipment and another receiver；